DESCRIPTION:(from ABC's press release) A second season of ABC's hysterical hidden-camera comedy series, "Just for Laughs," premieres TUESDAY, JANUARY 1 (8:00-8:30 p.m., ET). Gags include a jumping cake, an out of control electric wheelchair, a fake spraying skunk, conflicting traffic police, a hidden swamp creature and two ladies with walkers in the middle of the street doing anything but walking.